<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://unpkg.com/vue"></script>
</head>
<body>
<div id="app-5">
    <p>{{message}}</p>
    <button v-on:click="reverseMessage">逆转消息</button>
</div>
<script>
    var app5 = new Vue({
        el:'#app-5',
        data:{
          message:'Hello Vue.js'
        },
        methods:{
            reverseMessage:function () {
                console.log(this);
                console.log(this.message);
                console.log(this.message.split(''));
                console.log(this.message.split('').reverse());
                console.log(this.message.split('').reverse().join(''));
                this.message = this.message.split('').reverse().join('');
            }
        }
    });
</script>
</body>
</html>